Heating, cooling, and ventilating apparatus.



J. KEITH.

HEATING, COOLING, AND VENTILATING APPARATUS.

I APPLICATION FILBDMAY 22, 1 909. 95 1,250.

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\NiT-NESSES;

J. KEITH.

HEATING, COOLING, AND VENTILATING APPARATUS.

, APPLICATION FILED MAY 22, 1909. 951,250. Patented Mar.,8, 1910.

INVENTOR. JAMES KEITH.

To all whom it may concern:

' various parts designed to secure greater efiithe case B of a fan-orblowerpreterably of JAMES Knrrn, or L ONDON, ENGLAND.

HEATING, COOLING,- AND VENTILATING APPARATUS.

Specification of Letters Patent.

Patented Mar. 8,1910.

Application filed May 22, 1909. Serial No, 497,724.

Be it known that I, J Aims KEITH, a subject of the King of the UnitedKingdom of Great Britain and Ireland, and residing at London, England,have invented a certain new and, useful Improvement in Heating, Cooling,and Ventilating Apparatus, of which the following is a specification.

This invention relates to heating, cooling and ventilating apparatus,used'mainly on shipboard, in which a fan or blower is employed to forceor circulate air through a heating or cooling element or elements withina casing and to direct it through air trunks or passages into the cabinsor apartments to be heated,' cooled or ventilated.

The novelty consists in the hereinafter described arrangement orcombination of the ciency of such apparatus;

In the accompanying drawings which illustrate the invention Figure 1 isa vertical section of the apparatus as applied for heating or coolingand delivering or circulating air to'or in an air trunk system connectedto the cabins of a ship Fig. 2 is an end elevation; and Fig. 3 is asectional plan of the same.

As shown, the apparatus comprises a' casing A of usual form to which isconnected the low pressure and large volume type suitably driven by anelectro-motor O, the inlet eye of the fan case being connected by a pipeor trunk D to a deck ventilator E having the usual screw down mushroomcover F. Within the casing A is-fitted a heat-trans.- ferring element Gof the form shown which extends over the greater part of-the depth andacross the width of the casing so that the air drawn in by the fanthrough the ventilator inlet is blown through the spaces between thefins of the heating or cooling element on which it impinges and isthereby heated or cooled on its passage to the branch H of the air trunksystem as indicated by arrows in Fig. 1. 1, y,

In order that the temperature of the fiowing air may be varied ifdesired without great variation of the-temperature of the heating orcooling element, fiap doors or valves I and J .which normally serve todirect the air draft on to the heating or cooling element are, providedand so hinged to the casing A that they may be swung or more or lessopened to permit of the how of a portion of the air through passagesabove K servesmormally to cut'ofl? the trunk H when fresh'air is drawnin from'the ventilator E, but when the ventilator E is closed the valveK is opened andan upper valve L' may be closed so that the fan draws airfrom the trunk H and directs it through the casing A to the trunk H, theair being heated or cooled ment G. Access to the fan is provided by adoor M in the air inlet pipe, and access to the intein its passage bythe elerior of the casing A isv obtained through a door N in the'endotthe latter.

Having now descrlbed my invention what I claim and desire to secure byLetters Pat entof the United States is:- p In heating, cooling andventilating apparatus, in combination, a casing, a door for said casing,a fan'case having an inlet eye, said case directly connected to saidcasing, a centrifugal fan adapted to rotate within the fan case, aventilator, a screw-down cover for said ventilator, a pipe lconnectingthe inlet eye of said fan case with said ventilator, a door in saidpipe, an air trunk system connected to said casing, a tubular,heattransferring element fitted in said casing, located between the fancase and the .air trunk system, two valve flaps fitted in said casing,one above and one'below said element, said flaps serving when closed todirect the flow of air through said element and serving when open topermit flow of air past said element, a re- I turn trunk connected tosaid pipe, a valve serving to cut oil thereturntrunk from the casingwhen air is drawn in from the ven name to this specification in thepresence of v tilator and to permit the flow of air from two subscribingWitnesses. the return trunk to the casing When the Venr i tilator isclosed, and a valve for cutting off I JAMES KEI 5 communication betweenthe ventilator and Witnesses:

the casing. v WALLACE CRANSTON FAIRWEATHER,

In testimony whereof I have signed my JOHN MCCLEARY, Jr.

